theres a neighbor of the lawn i cut 2 doors down. there tired of the grass ditch never getting empty (cant be mowed). so they want me to build a block wall on both sides & stones on the botom,to help get rid of the water. Also so it does not need to be mowed. now i have been calling to the county the local city and I'm getting the run around to see if i can do it or if the county owns the ditch. attached is a idea of how she wants it. what to do?